Transitional image for a portion of a display screen



FIG. 1 is a front view of the first image of a transitional image for a portion of a display screen showing our new design;

FIG. 2 is a front view of the second image thereof;

FIG. 3 is a front view of the third image thereof; and,

FIG. 4 is a front view of the fourth image thereof.

The perimeters of the underlying display screen and the computer icon are understood to be flush.

The broken line showing of text, numbers and graphic elements in all views is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a transitional image for a portion of a display screen, as shown and described. 